Means for inflating pneumatic tires.



N0.'s50,7os, PATENTED-APR.1 6,1907.

A. A. WITHERS.

MEANS FOR INPLATING PNEUMATIC TIRES.

APPLICATION FILED AUG. 28, 1905. I

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ALBERT'ARTHUR WITHERS, or BALAOLAVA, VICTORIA, AUSTRALIA.

MEANS FOR INFLATING PNEUMATIC TIRES.

Specification of Letters Patent.

Patented. April 16, 1907.

Application filed August 28,1905. Serial No, 276,178.

T0 on whom, it may concern.-

Be it known that I, ALBERT AR'rIiUR WrrriERs, a subject of the King ofGreat Britain and Ireland, residing at 17 William street, Balaclava, inthe State of Victoria, Commonwealth of Australia, inventor, haveinvented certain new and useful Improvements in Means for InflatingPneumatic Tires, of which the following is a specification.

The object of my invention is to provide means for inflating pneumatictires of bicycles, tricycles, motor-cars, or other vehicles, which meansshall be cheap in construction, simple in action, of long life, notliable to derangement, and by which a tire may be inflated more rapidlyand with less fatigue to the operator. These consist of connections forinfiater-pumps which can be readily attached to any description ofexisting infl-aters and are adapted to readily connect with and form anair-tight joint with any form of valve at present in useupon pneumatictires.

In the inflater-pumps hitherto made there has been a rubber tube betweenthe connec tions to the said infiater-pump and the connections for theinlet portion of the valve of a tire. This rubber tube is anobjectionable feature, is always liable to derangement, subject to ablowout, or has permitted the escape of air in operation. With my.devices this rubber tube is dispensed with andthe air is forced directinto the valve. This allows the rim of the wheel to be used as aresistance and obviates the strain upon the arm of the operator,

Referring to the drawings which form a part of this specification,Figure 1 represents a sectional elevation of the connection for use uponan ordinary form of infiater-pump at present in use, the connectionconstructed according to the present invention. Fig. 2 is a fragmentaryview of the pump, showing the present invention applied thereto.

Referring to the drawings, which disclose one embodiment of myinvention, C indicates a cup-shaped piece which is open at its outerend, but partially closed on its inner end 0 in the manner shown. Thisinner end is formed at an angle to the sides, so that the infiater-pumpmay be entered upon the inlet-valve from more convenient positions;Integral with the said inner portion C is a screw-threaded extension orprojecting piece C This has a hole C therein to connect with the hole 0in the said inner portion C. The cup in its interior is provided withscrew-threads, as C Into the cup I introduce in any suitable orwell-known manner a composition filling, preferably of rubber, (whichmay or may not be vulcanized thereon.) This filling is marked C andengages with the thread C and remains securely embedded within the saidcup C. Through the rubber or similar composition C, I ,drill orotherwise form a cone-shaped hole or perforation C. This is of largerdiameter at the outer than at the inner portion of the said cup-piece.The hole communicates with the hole C in the inner portion of the cup Gand with the hole C Within the threaded projection 0 v The cycle ofoperation when using the connection is simply to press the cup 0 overthe air-inlet portion of an ordinary valve and operate the pumpconnected thereto until the tire is inflated. As the cone-shaped hollowC in the rubber C engages with the air-inlet portion of the valve itsecures a firm grip on the corrugations or threads of the valve, andthus forms an air-tight joint.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is

A pump-nipple comprising a hollowed body portion and a securing portionformed at an angle to said body portion and threaded on the peripherythereof for securing said nipple to a pump, the h0llowed-out portion .ofsaidbody portion being internally threaded, and a filling for saidhollowed-out portion having a conical-shaped aperture passingtherethrough and a thread formed on the outer portion thereof forengaging'the threads on said body portion.

In testimony whereof I afliX my signature in the presence of twosubscribing witnesses.

ALBERT ARTHUR WITHERS.

Witnesses: A

CECIL W. J. SLASTRIN, GEORGE A. UREN.

